ASUS - ROG Crosshair X870E Hero vs MSI - MAG B850 Tomahawk
Between the ROG Crosshair X870E Hero and MAG B850 Tomahawk, the ROG Crosshair X870E Hero comes out ahead in m.2 slots and pcie slots, while the MAG B850 Tomahawk wins on several specs. Overall, the ROG Crosshair X870E Hero scores 70.7 and the MAG B850 Tomahawk scores 65 on our Mars Score.
Which should you buy?
The ROG Crosshair X870E Hero edges ahead on the Mars Score (70.7 vs 65), but the 5.7-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the ROG Crosshair X870E Hero if you care most about m.2 slots and pcie slots. The biggest gaps in its favor are m.2 slots, pcie slots.
The MAG B850 Tomahawk similarly doesn't carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable max memory, ram slots, wi-fi 7, so those specs don't separate the two — focus on the differences below.
Bottom line: the ROG Crosshair X870E Hero is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why ASUS - ROG Crosshair X870E Hero wins
- ▲M.2 slots — 1.00 more. 5 vs 4.
- ▲PCIe slots — 1.00 more. 4 vs 3.
Why MSI - MAG B850 Tomahawk wins
- No decisive advantages.
Spec comparison
Platform
| Spec | ASUS - ROG Crosshair X870E Hero | MSI - MAG B850 Tomahawk |
|---|---|---|
| Socketⓘ | AM5 | AM5 |
| Chipset | X870E | B850 |
| Form factor | ATX | ATX |
Expansion
| Spec | ASUS - ROG Crosshair X870E Hero | MSI - MAG B850 Tomahawk |
|---|---|---|
| RAM slots | 4 | 4 |
| Max memory | 192 GB | 192 GB |
| PCIe slots | 4lead | 3 |
| M.2 slotsⓘ | 5lead | 4 |
I/O
| Spec | ASUS - ROG Crosshair X870E Hero | MSI - MAG B850 Tomahawk |
|---|---|---|
| USB ports | 14lead | 10 |
| 2.5GbE LAN | true | true |
| Wi-Fi 7ⓘ | true | true |
Frequently asked
Spec-level deep dives
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